E-mails marked as junk

[Towelie]

Hello,

I'm having a problem with my server - all the e-mails sent from the server get into the junk folder (gmail/yahoo)
I've checked the major lists and the ip is not blacklisted.

Server info:
OS: CentOS 5.4
ISPCP Omega 1.0.3

Any help would be appreciated.
Please ask if you need further information.

[gOOvER]

For the next Time: Please use the correct Forum

[Towelie]

ok, sorry

[BeNe]

Can you see any reasons why they are in the Junk Mail Folder ?
Check your DNS/rDNS, SPF Records...

Greez BeNe

[Towelie]

(02-19-2010 04:22 PM)BeNe Wrote:  Can you see any reasons why they are in the Junk Mail Folder ?
Check your DNS/rDNS, SPF Records...

Greez BeNe

Hello,

I've managed to fix last night this by signing the outgoing messages with DKIM.
However, any idea how i could make ispcp automatically create dkim signatures for new created domains ?

[Towelie]

Update, it won't work for yahoo even when having correct dkim signatures ( bulk folder )

For google, it seems to follow some rules that I don't understand ( some sender domains are accepted as ok, others are marked as spam ) , anyway dkim doesn't seem to help this. Some domains that I have dkim signed arrive in bulk, others that are not arrive in inbox (same ip for all)

The spf record is ok . The dns / rdns i don't really understand. What should I check for rDNS ?

[uwe]

(02-20-2010 04:45 AM)Towelie Wrote:  The spf record is ok . The dns / rdns i don't really understand. What should I check for rDNS ?

Make sure you have a reverse dns record ( looking up the name for the IP yields a valid name) ! for example

dig your.host.name

your.host.name IN A 1.2.3.4

dig -x 1.2.3.4

1.2.3.4 IN PTR your.host.name

OR

1.2.3.4 IN PTR some.other.valid.name

[Towelie]

ok.. did it
so here's what i got

Code:

dig gtfo.ro
;; ANSWER SECTION:
gtfo.ro.                43200   IN      A       89.35.251.223

Code:

dig -x 89.35.251.223
;; ANSWER SECTION:
223.251.35.89.in-addr.arpa. 86400 IN    PTR     89-35-251-223.dcn.ro.

so obviosuly they are not the same as far as I understand I have to talk to my isp to change it, but they surely won't change them for only the 2 ips that we have

Question: This is only one domain that we host. There are more. What should the r-dns records show if you have more than 1 domain / ip ?

[kilburn]

The reverse dns should simply point to your server's fqdn. It doesn't matter how many domains you host, as it doesn't need to match the sender address domain of the e-mails. It must match the "helo" that your server is using...

[Towelie]

ok, thanks .. I got it now
I tried using 89-35-251-223.dcn.ro as the host name in main.cf but I get even bigger problems because the name supposedly looks like a dynamically asigned ip ( which is not ).
I guess I have to talk to the isp and pray for yahoo accepting the mails as legit